Warfarin poisoning in patients with prosthetic heart valves.
D001803:Blood Transfusion; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011517:Prothrombin Time; D014859:Warfarin / Q000097:blood / Q000506:poisoning*
D014859:Warfarin